Flathman, R. E. (1987). The philosophy and politics of freedom. University of Chicago Press.
Lua i Stíl Chicago (17ú heag.)Flathman, Richard E. The Philosophy and Politics of Freedom. Chicago: University of Chicago Press, 1987.
Lua MLA (9ú heag.)Flathman, Richard E. The Philosophy and Politics of Freedom. University of Chicago Press, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.